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The Interstellar Medium in Galaxies is a collection ofreviews based on research into the interstellar medium (ISM) in theMilky Wayand other galaxies. The book is appropriate both as anauxiliary textfor graduate courses and as a basis reference forprofessionalscientists. The articles cover current observations andtheories onthe components of the ISM, and they extend our knowledgeof the MilkyWay to the different and exotic conditions in othergalaxies. Forexample, the effects of supernovae, galactic fountains,coolingflows, interactions and collisions, active nuclei, magneticfields,starbursts, and mass loss by evolved stars are all discussedin thisvolume. The text also includes short articles on thetechniques ofmass determination for the gaseous and dusty componentsof the ISM.These articles are based on invited talks given at theSecond WyomingConference on the ISM, held during July 1989, in theGrand TetonNational Park, Wyoming, U.S.A. ... Read more

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The collision of supernova debris with the ambient interstellar medium is a rich field of research. Experts in this area met in June 1987 at Penticton and reviewed subjects including the interstellar medium, evolution of supernova remnants, observations of supernova remanants, shocks and emission processes, and collective effects in galaxies. This official proceedings volume is a must for libraries that maintain complete collections of International Astronomical Union publications, and is a valuable source book for professionals working on supernova remnants. ... Read more

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This volume gives a comprehensive and integrated overview ofcurrent knowledge about the local interstellar medium (LISM)surrounding our heliosphere (HS). It is the result of the firstworkshop at ISSI, where both space physicists and astronomerspresented and discussed their views on the density, velocity,temperature, composition, and morphology of the LISM and how itinteracts with the HS. The volume is unique in its combination of dataobtained by remote UV, EUV, and X-ray observations outside the HS within situ observations of interstellar atoms, ions, and dust inside theHS. It thus demonstrates a new synergy between these two communities.The book is intended to provide active researchers in space physicsand in astronomy with an up-to-date status report of its topic, andalso to furnish the advanced graduate student with introductorymaterial into the field. ... Read more

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This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words.This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ... Read more

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The Interstellar Medium in Galaxies is a collection ofseven reviews covering the following constituents of the interstellarmedium: dust, molecular gas, neutral atomic hydrogen, ionizedhydrogen, and hot gas, and covering the abundances of heavy elementsin the interstellar medium and the role of star formation. The reviewsnot only provide a good background in these subjects, but alsodescribe in detail the most recent advances in the area and discussthe current problems in the field. The properties of the differentconstituents of the interstellar medium are discussed within theperspective of the difference in properties of the parent galaxies andthe environment. The interplay between star formation and thecharacteristics of the interstellar medium is also discussed indetail.
This volume provides very up-to-date material on the subject of theinterstellar medium in galaxies and is useful both as a basicreference for professional scientists in this field and as anintroductory book for astronomers who want to familiarize themselveswith this field. This volume can also serve as an accompanying textbook for graduate courses on the interstellar medium. ... Read more

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New stars form in the dense turbulent gas clouds of galaxies. A wide variety of processes, with scales ranging from the size of a galaxy to the size of an individual star, drive interstellar turbulence and trigger dense cloud formation. The formation of these clouds is the subject of the IAU S237. This book is the most up-to-date review of all aspects of cloud and star formation. It summarizes the current state of understanding of triggered star formation in a turbulent interstellar medium. Topics covered range from observations and theory of turbulence in the ISM, to the formation of shells and young stars inside of shells, and molecular clouds, star clusters, and galaxies, all with a view toward understanding how star formation begins in these various environments. It is the first comprehensive overview of triggered star formation, and one of the few compendiums available on ISM turbulence. ... Read more

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Starbursts or spectacular star-forming events are seen on large scales in some galaxies, often triggered by galactic interactions. An intriguing implication of starburst research is that active galactic nuclei (AGN) may not be powered by accreting black holes. Instead theories are presented where compact powerhouses of dust-enshrouded star formation lie at the core of AGN, with supernovae exploding roughly once per year within massive nuclear concentrations of gas. This book comprises a thorough review of the most important developments in galactic-scale star formation since the starburst revolution of the late 1980s. ... Read more

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A leading stellar astronomer summarizes our understanding of supernovae and their interaction with interstellar gas, including the ambient interstellar medium, the gas ejected in the explosion itself, and the gas emitted as stellar wind. She examines the evolution of supernova remnants as they interact with the gas and considers the role of supernovae and stellar wind in the physical state of the interstellar medium. Essential reading for specialists in supernovae and stellar evolution. ... Read more

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This timely volume presents a series of review articles covering every aspect of interstellar turbulence--from accretion disks, molecular clouds, atomic and ionized media, through to spiral galaxies--based on a major international conference held in Mexico City. With advances in observational techniques and the development of more efficient computer codes and faster computers, research in this area has made spectacular progress in recent years. This book provides a comprehensive overview of the most important developments in observing and modeling turbulent flows in the cosmos. It provides graduate students and researchers with a state-of-the-art summary of observational, theoretical and computational research in interstellar turbulence. ... Read more

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This volume contains the proceedings of the international workshop on the evolution of interstellar matter and dynamics of galaxies held at the Center for Theoretical Study in Prague in May 1991. All of the invited lectures are included, covering a broad area embracing star formation inside molecular clouds, HI supershells in interstellar space, and the dynamical evolution of the interstellar medium in galaxies. ... Read more

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Chapters: Carl Sagan, Timeline of Knowledge About the Interstellar and Intergalactic Medium, Interstellar Medium, List of Molecules in Interstellar Space, Cosmic Dust, Astrophysical Maser, Photoelectrochemical Processes, Absorption Spectroscopy, Trihydrogen Cation, Abundance of the Chemical Elements, Polycyclic Aromatic Hydrocarbon, Propynylidyne, Hydrogen Line, William Klemperer, Interstellar Formaldehyde, Diffuse Interstellar Band, Tholin, Fraunhofer Lines, Local Void, Equivalent Width, Atomic and Molecular Astrophysics, Cumulene, Cosmochemistry, Polyyne, Ofer Lahav, Tricarbon, Diatomic Carbon, Swan Band. Source: Wikipedia. Pages: 180. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: This is a list of molecules that have been detected in the interstellar medium, grouped by the number of component atoms. The chemical formula is listed for each detected compound, along with any ionized form that has also been observed. The molecules listed below were detected by spectroscopy. Their spectral features are generated by transitions of component electrons between different energy levels, or by rotational or vibrational spectra. Detection usually occurs in radio, microwave, or infrared portions of the spectrum. The first such molecule to be detected in the interstellar medium was the methylidyne radical (CH) in 1937. Interstellar molecules are formed by chemical reactions within very sparse interstellar or circumstellar clouds of dust and gas. Usually this occurs when a molecule becomes ionized, often as the result of an interaction with a cosmic ray. This positively-charged molecule then draws in a nearby reactant by electrostatic attraction of the neutral molecule's electrons. Molecules can also be generated by reactions between neutral atoms and molecules, although this process is generally sl...More: http://booksllc.net/?id=921245 ... Read more

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Chapters: Constellation, Interstellar Medium, Outer Space, Cosmic Dust, Asterism, Stellar Magnetic Field, Astronomical Symbols, Rogue Planet, Astronomical Object, Extraterrestrial Materials, Virgohi21, Deep Sky Object, Interplanetary Dust Cloud, Interplanetary Medium, Superbubble, Scp 06f6, Intracluster Medium, Substellar Object, Lists of Astronomical Objects, Stellar Wind Bubble, Glass With Embedded Metal and Sulfides, Hot Companion, Differential Rotation, Magellanic Bridge. Source: Wikipedia. Pages: 146. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Outer space (often simply called space) is the void that exists beyond any celestial body including the Earth. It is not completely empty (i.e. a perfect vacuum), but contains a low density of particles, predominantly hydrogen plasma, as well as electromagnetic radiation, magnetic fields, and neutrinos. Theoretically, it also contains dark matter and dark energy. In 350 BC, Greek philosopher Aristotle suggested that nature abhors a vacuum, a principle that became known as the horror vacui. Based on this idea that a vacuum could not exist, it was widely held for many centuries that space could not be empty. As late as the seventeenth century, the French philosopher René Descartes argued that the entirety of space must be filled. It became known to Galileo Galilei that air had weight and so was subject to gravity. He also demonstrated that there was an established force that resisted the formation of a vacuum. However, it would remain for his pupil Evangelista Torricelli to create an apparatus that would produce a vacuum. At the time this experiment created a scientific sensation in Europe. The French mathematician Blaise Pascal reasoned that if the column of mercury was suspended by air then the column ought to be shorter at higher altitude....More: http://booksllc.net/?id=177602 ... Read more

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Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 mm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust (potentially concentrated in a nebula), interplanetary dust (such as in a circumstellar disk) and circumplanetary dust (such as in a planetary ring). In our own Solar System, interplanetary dust causes the zodiacal light. Sources include comet dust, asteroidal dust, dust from the Kuiper belt, and interstellar dust passing through our solar system. The terminology has no specific application for describing materials found on the planet Earth, other than in the most general sense that all elements with an atomic mass higher than hydrogen are believed to be formed in the core of stars via stellar nucleosynthesis and supernova events. As such all elements that exist can be indiscriminately considered to be a form of "cosmic dust". ... Read more

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This digital document is an article from Science News, published by Science Service, Inc. on January 30, 2010. The length of the article is 2676 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.

Citation Details
Title: The final chemistry frontier: molecules of the interstellar medium must break the rules to make the stuff of space.
Author: Rachel Ehrenberg
Publication: Science News (Magazine/Journal)
Date: January 30, 2010
Publisher: Science Service, Inc.
Volume: 177Issue: 3Page: 26(4)

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